Eyewear and temple unit for eyewear

Abstract

A temple unit for an eyewear includes two temples each including pivotally connected front and rear segments. The front and rear segments respectively include adjacent rear and front ends. One of the front and rear ends is formed with a protruding portion, and the other one of the front and rear ends is formed with a recess portion. The protruding portion has at least three non-coplanar first flat surfaces defining two convex corner sections. Any two adjacent ones of the first flat surfaces are connected to each other to define one of the convex corner sections. The recess portion has at least two non-coplanar second flat surfaces connected to each other to define a concave corner section engaging a selected one of the convex corner sections so as to position the rear segment relative to the front segment.

What is claimed is: 
     
       1. A temple unit for an eyewear, comprising
 two temples adapted to be mounted respectively at left and right sides of the eyewear, each of said temples including:
 a front segment that has a rear end; 
 a rear segment that has a front end adjacent to said rear end of said front segment, one of said rear end and said front end being formed with a protruding portion, the other one of said rear end and said front end being formed with a recess portion, said protruding portion having at least three first flat surfaces that are non-coplanar and that define two convex corner sections, any two adjacent ones of said first flat surfaces being connected to each other and forming a first obtuse angle therebetween to define one of said convex corner sections, said recess portion having at least two second flat surfaces that are non-coplanar, that are connected to each other to define a concave corner section engaging a selected one of said convex corner sections so as to position said rear segment relative to said front segment, and that form a second obtuse angle therebetween; and 
 a pivot connector connecting said front end pivotally to said rear end so as to allow said rear segment to pivot relative to said front segment, said rear segment being prevented from pivoting movement relative to said front segment when said concave corner section engages the selected one of said convex corner sections. 
 
 
     
     
       2. The temple unit as claimed in  claim 1 , wherein, for each of said temples, said rear end of said front segment is formed with a groove indented from a lower end of said rear end, and a first through hole extending through said rear end in a left-right direction and in spatial communication with said groove, said pivot connector including a tongue and a fastening member, said tongue having one end that is connected fixedly to said front end and the other end extending into said groove and formed with a second through hole aligned with said first through hole in the left-right direction, said fastening member extending into said first through hole and said second through hole to connect said rear end to the end of said tongue extending into said groove in such a manner that said rear segment is pivotable relative to said front segment about said fastening member. 
     
     
       3. The temple unit as claimed in  claim 2 , wherein said tongue is made of metal, said fastening member being a screw, said first through hole and said second through hole being threaded. 
     
     
       4. The temple unit as claimed in  claim 2 , wherein said tongue of said pivot connector is configured to have an s-shape extending in a front-rear direction transverse to the left-right direction. 
     
     
       5. The temple unit as claimed in  claim 1 , wherein said rear end of said front segment is formed with a first groove indented from a lower end of said rear end, and a first through hole extending through said rear end in a left-right direction and in spatial communication with said first groove, said front end of said rear segment being formed with a second groove open toward said rear end of said front segment, said pivot connector including a movable member, a biasing member, a rod and a fastening member, said movable member including an elongated housing disposed movably in said second groove and having front and rear end walls, and a pivot connecting segment extending from said elongated housing outwardly of said second groove into said first groove, formed with a second through hole aligned with said first through hole in the left-right direction, said rod extending movably through said rear end wall of said elongated housing and having a head portion that is disposed in said elongated housing and that has a diameter greater than that of said biasing member, and a fixed portion that extends outwardly of said elongated housing away from said front end and that is fixed in said second groove, said biasing member being disposed in said elongated housing, sleeved on said rod, having opposite ends that respectively abut against said head portion and said rear end wall of said elongated housing, and biasing said movable member toward said fixed portion, said fastening member of said pivot connector extending through said second through hole and said first through hole in the left-right direction so as to connect said pivot connecting segment to said rear end in such a manner that said rear segment is pivotable relative to said front segment about said fastening member. 
     
     
       6. The temple unit as claimed in  claim 1 , wherein said protruding portion has four of said first flat surfaces that are non-coplanar and that define three of said convex corner sections. 
     
     
       7. The temple unit as claimed in  claim 1 , wherein said protruding portion has four of said first flat surfaces that are non-coplanar and that define three of said convex corner sections, said recess portion having three of said second flat surfaces that are non-coplanar and that define two concave corner sections, any two adjacent ones of said second flat surfaces being connected to each other and forming the second obtuse angle therebetween to define one of said concave corner sections, said rear segment being positioned relative to said front segment when said concave corner sections are brought into engagement with any two adjacent ones of said convex corner sections, respectively. 
     
     
       8. An eyewear comprising:
 a main frame unit including two mounting portions at left and right sides thereof; and 
 a temple unit including two temples mounted respectively to said mounting portions, each of said temples including:
 a front segment that has a rear end; 
 a rear segment that has a front end adjacent to said rear end of said front segment, one of said rear end and said front end being formed with a protruding portion, the other one of said rear end and said front end being formed with a recess portion, said protruding portion having at least three first flat surfaces that are non-coplanar and that define two convex corner sections, any two adjacent ones of said first flat surfaces being connected to each other and forming a first obtuse angle therebetween to define one of said convex corner sections, said recess portion having at least two second flat surfaces that are non-coplanar, that are connected to each other to define a concave corner section engaging a selected one of said convex corner sections so as to position said rear segment relative to said front segment, and that form a second obtuse angle therebetween; and 
 a pivot connector connecting said front end pivotally to said rear end so as to allow said rear segment to pivot relative to said front segment, said rear segment being prevented from pivoting movement relative to said front segment when said concave corner section engages the selected one of said convex corner sections. 
 
 
     
     
       9. The eyewear as claimed in  claim 8 , wherein, for each of said temples, said rear end of said front segment is formed with a groove indented from a lower end of said rear end, and a first through hole extending through said rear end in a left-right direction and in spatial communication with said groove, said pivot connector including a tongue and a fastening member, said tongue having one end that is connected fixedly to said front end and the other end extending into said groove and formed with a second through hole aligned with said first through hole in the left-right direction, said fastening member extending into said first through hole and said second through hole to connect said rear end to the end of said tongue extending into said groove in such a manner that said rear segment is pivotable relative to said front segment about said fastening member. 
     
     
       10. The eyewear as claimed in  claim 9 , wherein, for each of said temples, said tongue is made of metal, said fastening member being a screw, said first through hole and said second through hole being threaded. 
     
     
       11. The eyewear as claimed in  claim 9 , wherein, for each of said temples, said tongue of said pivot connector is configured to have an s-shape extending in a front-rear direction transverse to the left-right direction. 
     
     
       12. The eyewear as claimed in  claim 8 , wherein, for each of said temples, said rear end of said front segment is formed with a first groove indented from a lower end of said rear end, and a first through hole extending through said rear end in a left-right direction and in spatial communication with said first groove, said front end of said rear segment being formed with a second groove open toward said rear end of said front segment, said pivot connector including a movable member, a biasing member, a rod and a fastening member, said movable member including an elongated housing disposed movably in said second groove and having front and rear end walls, and a pivot connecting segment extending from said elongated housing outwardly of said second groove into said first groove, formed with a second through hole aligned with said first through hole in the left-right direction, said rod extending movably through said rear end wall of said elongated housing and having a head portion that is disposed in said elongated housing and that has a diameter greater than that of said biasing member, and a fixed portion that extends outwardly of said elongated housing away from said front end and that is fixed in said second groove, said biasing member being disposed in said elongated housing, sleeved on said rod, having opposite ends that respectively abut against said head portion and said rear end wall of said elongated housing, and biasing said movable member toward said fixed portion, said fastening member of said pivot connector extending through said second through hole and said first through hole in the left-right direction so as to connect said pivot connecting segment to said rear end in such a manner that said rear segment is pivotable relative to said first segment about said fastening member. 
     
     
       13. The eyewear as claimed in  claim 8 , wherein, for each of said temples, said protruding portion has four of said first flat surfaces that are non-coplanar and that define three of said convex corner sections. 
     
     
       14. The eyewear as claimed in  claim 8 , wherein, for each of said temples, said protruding portion has four of said first flat surfaces that are non-coplanar and that define three of said convex corner sections, said recess portion having three of said second flat surfaces that are non-coplanar and that define two concave corner sections, any two adjacent ones of said second flat surfaces being connected to each other and forming the second obtuse angle therebetween to define one of said concave corner sections, said rear segment being positioned relative to said front segment when said concave corner sections are brought into engagement with any two adjacent ones of said convex corner sections, respectively.